R&S ZVB - Page 88

R&S
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ZVA / R&S
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ZVB / R&S
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ZVT Measurement Examples
Calibration
Operating Manual 1145.1084.12 – 30 73
1. Perform all channel settings for your measurement.
2. Click Channel – Calibration – Start Cal – Two Port P1 P2 – Manual... to open the calibration
wizard for the desired calibration type.
3. In the Select Physical Port Connector(s) dialog, select the connector type that you use at port 1
and 2 (both connector types must be equal) and the calibration kit. Click Next > to access the
Measure Standards dialog.
4. Connect an open standard to port 1 and click the corresponding box in the Measured Standards
list to initiate the calibration sweep and acquire the calibration data for this standard.
5. Repeat the last step for a short and a match connected to port 1, an open, short and match
connected to port 2, and for a through between both ports.
6. Click Apply to start the calculation of the system error correction data, apply them to the current
channel and close the calibration wizard.
7. Replace the last measured standard with your DUT and perform calibrated measurements without
changing the channel settings used for calibration.
You can also access manual calibration from the S-Parameter Wizard.
Perform an automatic calibration
In the following example a 4-port TOSM calibration is performed using a calibration unit (accessories R&S
ZV-Z51 ... -Z59 or R&S ZN-Z51/-Z151). The calibration of other numbers of ports is analogous; see
Performing an Automatic Calibration.
Connect the calibration unit:
1. Switch on and start-up your network analyzer and establish a USB connection to the calibration
unit; see Connecting the calibration unit.
2. Connect ports 1 the unit to port 1 of the analyzer; repeat this for ports 2 to 4.
Perform the calibration:
3. Click Channel – Calibration – Start Cal – Four Port P1 P2 P3 P4 – Calibration Unit and wait until
the calibration is completed. If a message box All test port connectors will be changed to <Connector
type> pops up, confirm with OK.
4. Remove the connecting cables from the unit, connect your DUT instead and perform calibrated
measurements.
You can also access automatic calibration from the S-Parameter Wizard.
Creating a user-defined calibration kit
Predefined calibration kits do not always contain all necessary calibration standards for a particular
calibration type. For advanced calibration types such as TRL with two or more Lines, you will have to
create your own calibration kit. This is most conveniently done by copying an existing kit and adding new
standards. To add a second Line standard to a kit containing a single Line,
 Click Channel – Calibration – Cal Kits... and use the Calibration Kits dialog to select an existing
kit.
 Click Copy Kit to... and create a copy of the old kit using a new cal kit name.
 Select the kit from the Calibration Kits in Use table, click View/Modify Kit, and add the second Line
standard with appropriate delay time. See TRL calibration with 2 Lines below.